Bitcoin is an attractive option for money launders primarily because laundering money using cryptocurrencies is easier than other methods.
Don't make it look like as if bitcoin is designed for this illegal purpose bitcoin is just a digital currency whereby people can use to hold their wealth or assets and exchange for them as well, money launderers take the risk to go about stealing from their victims any valuables and not with bitcoin or through bitcoin is any of these evil done, but they can choose to exchange their money or assets with bitcoin without anyone knowing or going through the means for their wealth accumulations just as you and I can go to the bank and make deposit and no one will query the source of our finance, the question we should ask is that are people not making money laundering with fiat right before bitcoin was being introduced.
This is why some people are hesitant about the nature of bitcoin because some people have their negative approach on this market.
This market has just been used by money launderers and other illegal actors because they are finding a way to hide their privacy.
But this market is not created for such purpose, it just evolves to one of these use cases because we can't control illegal activities in any monetary system.
Just like any type of currency, this market is not immune to those kind of people. We just need to be cautious dealing with such as we don't know what they can do to you to screw your hard-earned money.